ce94d12f67
* gcc.c-torture/execute/stdio-opt-1.c: Test __builtin_ style too. * gcc.c-torture/execute/stdio-opt-2.c: Likewise. * gcc.c-torture/execute/string-opt-1.c: Likewise. * gcc.c-torture/execute/string-opt-2.c: Likewise. * gcc.c-torture/execute/string-opt-3.c: Likewise. * gcc.c-torture/execute/string-opt-4.c: Likewise. * gcc.c-torture/execute/string-opt-6.c: Likewise. * gcc.c-torture/execute/string-opt-7.c: Likewise. * gcc.c-torture/execute/string-opt-8.c: Likewise. * gcc.c-torture/execute/string-opt-9.c: Likewise. * gcc.c-torture/execute/string-opt-10.c: Likewise. * gcc.c-torture/execute/string-opt-11.c: Likewise. * gcc.c-torture/execute/string-opt-12.c: Likewise. * gcc.c-torture/execute/string-opt-3.c: Test rindex. * gcc.c-torture/execute/string-opt-4.c: Test index. From-SVN: r38497
125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/* Copyright (C) 2000 Free Software Foundation.
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Ensure all expected transformations of builtin strlen, strcmp,
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strrchr and rindex occur and perform correctly.
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Written by Jakub Jelinek, 11/7/2000. */
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extern void abort (void);
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extern __SIZE_TYPE__ strlen (const char *);
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extern int strcmp (const char *, const char *);
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extern char *strrchr (const char *, int);
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extern char *rindex (const char *, int);
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int x = 6;
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char *bar = "hi world";
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int main()
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{
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const char *const foo = "hello world";
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if (strlen (foo) != 11)
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abort ();
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if (strlen (foo + 4) != 7)
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abort ();
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if (strlen (foo + (x++ & 7)) != 5)
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abort ();
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if (x != 7)
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abort ();
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if (strcmp (foo, "hello") <= 0)
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abort ();
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if (strcmp (foo + 2, "llo") <= 0)
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abort ();
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if (strcmp (foo, foo) != 0)
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abort ();
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if (strcmp (foo, "hello world ") >= 0)
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abort ();
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if (strcmp (foo + 10, "dx") >= 0)
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abort ();
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if (strcmp (10 + foo, "dx") >= 0)
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abort ();
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if (strcmp (bar, "") <= 0)
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abort ();
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if (strcmp ("", bar) >= 0)
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abort ();
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if (strcmp (bar+8, "") != 0)
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abort ();
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if (strcmp ("", bar+8) != 0)
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abort ();
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if (strcmp (bar+(--x), "") <= 0 || x != 6)
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abort ();
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if (strcmp ("", bar+(++x)) >= 0 || x != 7)
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abort ();
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if (strrchr (foo, 'x'))
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abort ();
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if (strrchr (foo, 'o') != foo + 7)
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abort ();
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if (strrchr (foo, 'e') != foo + 1)
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abort ();
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if (strrchr (foo + 3, 'e'))
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abort ();
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if (strrchr (foo, '\0') != foo + 11)
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abort ();
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if (strrchr (bar, '\0') != bar + 8)
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abort ();
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if (strrchr (bar + 4, '\0') != bar + 8)
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abort ();
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if (strrchr (bar + (x++ & 3), '\0') != bar + 8)
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abort ();
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if (x != 8)
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abort ();
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/* Test only one instance of rindex since the code path is the same
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as that of strrchr. */
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if (rindex ("hello", 'z') != 0)
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abort ();
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/* Test at least one instance of the __builtin_ style. We do this
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to ensure that it works and that the prototype is correct. */
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if (__builtin_rindex (foo, 'o') != foo + 7)
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abort ();
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if (__builtin_strrchr (foo, 'o') != foo + 7)
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abort ();
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if (__builtin_strlen (foo) != 11)
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abort ();
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if (__builtin_strcmp (foo, "hello") <= 0)
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abort ();
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return 0;
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}
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static char *
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rindex (const char *s, int c)
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{
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/* For systems which don't have rindex, we ensure no link failures
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occur by always providing a backup definition. During
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optimization this function aborts to catch errors. */
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#ifdef __OPTIMIZE__
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abort ();
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#else
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return strrchr(s, c);
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#endif
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}
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#ifdef __OPTIMIZE__
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/* When optimizing, all the above cases should be transformed into
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something else. So any remaining calls to the original function
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should abort. */
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static __SIZE_TYPE__
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strlen (const char *s)
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{
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abort ();
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}
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static int
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strcmp (const char *s1, const char *s2)
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{
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abort ();
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}
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static char *
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strrchr (const char *s, int c)
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{
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abort ();
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}
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#endif
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